Cultural resource inventory and testing in the Salt Creek Pocket and Devils Lane areas, Needles District, Canyonlands National Park, Utah / by Betsy L. Tipps and Nancy J. Hewitt ; with contributions by Nancy J. Coulam, William A. Lucius and Alan R. Schroedl ; prepared under the supervision of Alan R. Schroedl, principal investigator ; submitted in partial fulfillment of contract CX 1200-4-A063 to ...